<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<link rel="stylesheet" href="css/06.css">
	<style>
		div{
			width: 400px;
	        height: 400px;
	        border: 1px solid #ccc;
		}
	</style>
</head>
<body>
	<div id="d1" class="c1">网博</div>
	<br>
	<div id="d2">div2</div>
</body>
</html>